Boltport offers made to order AISI 4340 fasteners in varieties of bolts, screws, stud bolts, studs, threaded rods, nuts, washers, pins & other bolting components, in hot forged condition. We are a manufacturer and supplier of AISI 4340 fasteners, produced from high integrity 4340 bar stock or forging stock to various ASTM and international material specifications. AISI 4340 fasteners posseses high bolting strength and used for high temperature, high pressure applications. We offer both metric and imperial sizes bolting parts in 4340 alloy steel. Smaller sizes bolting are often manufactured through cold forming while bigger sizes and custom parts are produced through hot forming and bar machining. Automotive manufactures often refer to SAE Grade 4340 for ordering fasteners. AISI 4340 fastening components are widely used for bolting applications in automotives, structural construction, shipbuilding and repair, marine engineering, power plants, etc.
AISI 4340 is commonly produced in form of standard and heavy hex head bolts, socket head cap screws, allen head screws, countersunk screws, set screws, lifting eye bolts, eye nuts, hex nuts, heavy hex nuts, stud bolts, tap end studs, double end stud bolts, plain threaded rods, heavy duty washers, dowel pins and other customised bolting components.
Find information on this alloy grade such as chemical composition, mechanical properties, feasible fastener products, related material specifications and applications.